Occupational Risk Management In a Mining Enterprise With the Aid of an Improved Matrix Method for Risk Assessment

system for occupational risk management in mining enterprises that
would be able to function under the conditions of a limitation in the
organization's economic and information resources. The study aims
to develop an approach of occupational risk management at a
mining enterprise based on an improved and fundamentally new
matrix method of assessing occupational risks, which allows
increasing the efficiency of managerial decision-making. The
suggested method is based on a set of methodological approaches
aimed at minimizing the drawbacks inherent to standard risk
assessment matrices that were identified and studied by the authors
in the process of system analysis. In particular, the regression
analysis of the experts' evaluations has provided the basis for
calculation models of occupational risk assessment, which allow
increasing the level of detail in evaluation results. Alongside that,
the fact that the suggested method uses intuitively comprehensible
continuous variables of probability/damage, on the one hand,
reduces the uncertainty in expert assessment, and on the other hand,
preserves the visibility and convenience of using the classical
matrix method for occupational risk assessment. To optimize the
use of the assessment groups' resources, the authors have developed
an algorithm for an occupational risk management procedure based
on a comprehensive qualitative study of scenarios of the negative
impact of hazards on mining enterprise workers. The paper provides
recommendations for systematization and inventory of occupational
risk analysis results to determine and plan protective measures. We
have described the results of the testing of the proposed method –
received in the course of analysis of the miners' working conditions
in the operating coal mines – which indicate an increase in the level
of detail of the output data and the possibility of applying a unified
approach to the analysis of heterogeneous occupational risks. In
addition to that, the paper shows the positive effect achieved by the
use of the suggested method compared to the standard matrix
assessment of occupational risks.